Edge-setting machine.



MARK THOMAS DENNEQOF 'nnsrrnnu, ENGLAND.

EDGE-sETTINGMAcHINE.

Specification of Letters Patent. 7

Patented Nov. 21, 1916.

Application filed May 18, 1914. Serial No. 839,208.

To all whom it may concern I Be it known that I, MARK THOMAS DENNE, a subject of the King of Great Britain and Ireland, residing at Rushden, N orthamptonshire, England, have invented new and useful Improvements in and Relating to Edge-Setting Machines, of which the following is a specification.

This invention has reference to improvements in and relating to edge setting machines and its main objects are to attain better results so far as quality of work is concerned, greater efliciency so faras output is concerned and to insure that less strain is imposed on the operator while he is pressing the sole edge against the rapidly vibrating edge setting tool.

Other advantages appertaining to my invention will be hereinafter, mentioned.

An important, feature of my invention consists in an edge setting tool to which very rapid vibratory movement in one plane is imparted and simultaneously therewith a rolling or rocking movement, the rapid vibratory movement which is in a plane tangential to the curve of that portion of the sole edge for the time being acted on, serving to rub the wax well into the sole edge as the latter is pressed against the tool and the rolling or rocking movement serving to impart 'aquasi-wiping action to the tool to produce the high finish and smooth surface which is very desirable. In order that the rolling or rocking motion of the tool shall not impart a movement to the work in a direction transverse to the direction of thereciprocating movements of the tool, the latter is made of appropriate curvature at its working ace.

By reason of the edge setting tool moving in one plane only the boot or shoe is not vibrated as the operator presses the sole edge against the tool and consequently the operators hands and wrists are not subjected to such a strain as is the case with sole edge setting machines heretofore in use and he can continue at his work for a far longer period than with the machines heretofore in use. Further, owing to the absence of vibration of the work the operator can press the sole edge against the tool with an even pressure and'he has a better control over the work in guiding and generally manipulating it.

In the accompanying drawing I have illustrated an embodiment of my invention setting machine embodying my invention.

Fig. 2 is a plan view partly in section of a portion of such a machine. Fig. 3 is an end sectional elevation on the line X X Fig. 2. Fig. 4 a sectional elevation on the line Z Z Fig. 1, and Figs. 5 and 6 are details to be hereinafter referred to.

Referring to the drawingil is .a pillar or support to which the lower portion 2 of a preferably two-part casing 2, 3, is fixed. The upper part 3 of said casing is connected to the lower portion in any suitable manner the joint between said parts being preferably oil and dust tight. Within said casing and mounted on suitable bearings lonly one of which is shownis a shaft 5 to which rapid rotary motion is imparted from a suitable source in any convenient manner,

Mounted on said shaft are two collars 6, 7 the former of which is fixed to the shaft, while thelatter, which is formed with a split boss 7, may be adjusted longitudinally of the shaftand tightened thereon in the desired osition by means of a taper nut 7*. The ad angle other than a right angle to the axis of the shaft and mounted between said collars is a yoke 8 that does not rotate with the shaft, but which by reason of the angularity of said collar faces has a compound movement imparted to it as the shaft rotates. To avoid undue friction ball races 9, 10 are provided between'the yoke and collars.

At each end of the yoke a tool carrier 11 is mounted-only one is shownwhich at its free end is bent or cranked preferably to such an amount that a horizontal plane passing through the axis of the shaft 5 will intersect the workingface of an edge tool 12 mounted on said carrier.

The yoke 8 is formed with a slot 18 to receive the tool carrier 11 the inner end of which is rotatably held by a boss 13 loosely mounted on theshaft 5. To the lower face of each of said carriers a link 14 is pivotally attached. said links in turn being engaged by a spring 15 the strength of which latter jacent sides of said collars are at an may be varied by the adjustment of a screw 16 carried in'the boss 13.

Slidably mounted between guide surfaces or slides 17 formed on. the casing 2, 3 of the machine are bearings 17 or the like which receive the outer ends of the yoke 8. On the rotation of the shaft 5 a compound movement, comprising a rocking as well as a vibratory motion, is imparted through the instrumentality of the collars 6, 7 to the yoke 8, the latter imparting a like movement to the tool carrier 11 and edge setting tool 12 mounted thereon, the bearing 17 or the like during such movements being caused to re ciprocate on its slides 17. The spring 15 normally holds the tool carriers depressed, the arrangement being such that when the operator presses a sole edge against the tool he raises the latter against the action of the spring 15 thereby obtaining a yielding pres sure on the work in a direction angular to the vibratory motion of the tool.

A gas jet 19 for heating the tool is pro" vided, a screw 20 enabling the flame to be regulated the relative arrangement of said jet and the spring 15 being such that the latter cannot become unduly heateda defeet inherent in some of the edge setting machines in use.

The edge setting tool 12 is made reversible each end being properly shaped so that either one or the other may be employed. For this purpose said tool 12 is held in position by a clamp screw 21 (Figs. 5 and 6) capable of adjustmentto tighten or loosen said screwby a crank handle 22 carried by the casing or other stationary part of the machine. To enable the vibratory movements to take place without necessitating the removal of the handle and to allow the screw to be tightened or loosened during the operation of the machine the shank of the handle isformed with a slot 23 which engages a tongue 24 on the clamp screw.

The front of the machine is provided with an adjustable grip 25 which the operator may hold to assist him in steadying the boot while rounding the toe.

What I claim as my invention and desire to secure by Letters Patent is 1. In an edge-setting machine, the combination with an edge-tool-actuating member, of an edge tool sustained thereby, and means to give both saidmember and the tool combined vibrating and rocking motions.

2. In an edge-setting machine, the combination with a shaft, of a yoke-shaped member embracing said shaft, an edge-setting tool carried by said member, and means to impart to said member and the tool carried thereby lateral vibrating and rocking move ments.

' 3. In an edge-setting machine, the combination with an edge-tool-actuating member, of an edge tool carrier supported thereby, an edge-tool secured to said carrier, and means to impart simultaneously to said member a vibrating motion and also a rocking motion.

4. In an edge-setting machine, the combination with an edge-tool-actuating member, of a. carrier yieldingly connected to said member, an edge-tool supported by said carrier, and means to impart to said member and carrier combined'vibratory and rocking movements. 7

In an edge-setting machine, the combination with an edge-tool-actuating member,

of'a tool carrier sustainedthereby, a reversible edge-setting tool mounted in said carrier, and means to give said member combined vibratory and rocking motions. V

6. In an edge-setting machine, the combination with a shaft, of two collars thereon having angular relation thereto, a yokeshaped member embracing said shaft and re ceived between said collars, and an edgesetting tool carried by said member whereby rotation of the shaftimparts to the member and tool combined vibratory and rocking motions.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MARK THOMAS DENNE.

Witnesses: V

WALTER WV. BALL, F. Hoon.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. 7

Washington, D. G. 

